I just returned to the Arduino after another absence. I decided to try and see if I could apply the ideas for making use of the classic bicolor LED. And chose to try and get to work with 1.05 the examples from the Playground.
However it causes an error, here:
BiColorLED:9: error: 'BiColorLED' does not name a type
BiColorLED.pde: In function 'void loop()':
BiColorLED:19: error: 'led' was not declared in this scope
BiColorLED:38: error: 'led' was not declared in this scope
That was shown in the sketch here:
BiColorLED led=BiColorLED(4,5); // (pin 1, pin 2)
As it happens I went and changed the header portion to accommodate the settings for running on everything after 1.x releases.